LAF 631 / 1001 / 1251 / 1601

DC power sources for submerged arc welding

The LAF series are three phase, fan-cooled DC welding power sources designed for high productivity mechanized Submerged or high productivity MIG/MAG arc welding.
They are used in combination with ESAB’s A2-A6 equipment range and the A2-A6 Process Controllers (PEK or PEI).

LAF welding power sources have excellent welding characteristics throughout the entire current and voltage range, with particularly good starting and re-ignition properties. These power sources demonstrate good arc stability at both high and low arc voltages.
The welding power source can be adjusted and monitored from the front panel of the process controller (PEK or PEI), which permits easy adjustment of all welding parameters.
The welding current range can be extended by connecting two power sources in parallel for the most demanding application.

Highlights

• Submerged arc welding
•  MIG/MAG welding

Industries

  • Shipbuilding (panels, sub-components)
  • Power generation (wind towers, boilers, vessels)
  • Infrastructural components (beams, bridges)
  • Off-road vehicles (excavators, dump trucks)

Specifications

Technical data
Voltage, 3 ph 50 Hz,
Voltage, 3 ph 60 Hz,
Current A 100%
Current A 100%
Cable area mm2
50 Hz
60 Hz
Fuse, slow A
50 Hz
60 Hz
Maximum load at:
100% duty cycle
80% duty cycle
60% duty cycle
Setting range A/V
MIG/MAG
SAW
Open circuit voltage,
Open circuit power,
Efficiency
Power factor
Enclosure class
Dimensions LxWxH
Weight, kg
Application class
LAF 631
400/415
440
52
52

4x16
4x16

63
63

630/44
-
800/44

50/17-630/44
30/21-800/44
54
150
0.84
0.90
IP23
670x490x930
260
S
LAF 1001
400/415/500
400/440/550
64/64/52
64/64/52
4x16
4x16

63
63

800/44
-
1000/44

50/17-1000/45
40/22-1000/45
52
145
0.84
0.95
IP23
646x552x1090
330
S
LAF 1251
400/415/500
400/440/550
99/99/80
99/99/80
3x35+25/3x35+25/3x25+16
3x35+25/3x35+25/3x25+16

100/100/80
100/100/80

1250/44
-
-

60/17-12
40/22-1250/44
51
220
0.87
0.92
IP23
774x598x1428
490
S
LAF 1601
400/415/500
400/440/550
136/136/108
136/136/108
3x70+35/3x70+35/3x50+35
3x70+35/3x70+35/3x70+35

160/160/125
160/160/125

1600/44
-
-

50/44-
40/22-1600/46
54
220
0.86
0.87
IP23
774x598x1428
585
S

Ordering

Description
LAF 631
LAF 1001
LAF 1251
LAF 1601
LAF 1001M
LAF 1251M
LAF 1601M
Control cable description
Control cable 15m PEK
Control cable 15m PEI
Control cable 25m PEK
Control cable 25m PEI
Control cable 35m PEK
Control cable 35m PEI
Control cable 50m PEK
Control cable 50m PEI
Wheel Set LAF 631
Order Number
0460 512 880
0460 513 880
0460 514 880
0460 515 880
0460 513 881
0460 514 881
0460 515 881
Control cable order number
PEK
PEI
PEK
PEI
PEK
PEI
PEK
PEI
0457 787 880

Documents

Instruction Manuals

LAF-631_1001_1251_1601.2024.pdf

Additional Documents

Search Other Documents

Need Product Help?

Product information and support line:
+371 294 80006